Improvement in machines for dicing leather



\a (92.3 ALFRED SHED LO CK.

Improvement in Machine for DicingLeatherJ M No, 122,136. g- '7 Patented Dec. 26,1871.

some qualities of leather.

UNITED STATES PATENT QFFIGE.

ALFRED SHEDLOOK, OF NEW YORK, ASSIGNOR OF ONE-HALF HIS RIGHT TO GLAUDIU S F. BEATTY, OF BROOKLYNQ NEW YORK.

IMPROVEMENTIN MACHINES FOR DICING LEATHER.

Specification forming part of Letters Patent N 0. 122,136, dated December 26, 1871.

Specification describing an Improved Dicing- Machine, invented by ALFRED SHnDLooK, of New York, in the county and State of New York. a

The machine described in the following specification is for the purpose of dicing, burnishing the crossed lines on, or scoring leather; and is so constructed that all the lines running one way are burnished on the leather at one operation, which is greatly advantageous over dicingmachines at present in use, as-they only burnish a few lines at a time.

' or opposite direction therewith, thereby burnishing the lines on the leather. There are provisions made for keeping cotton-waste saturated with a lubricant against the dicing-roller, as it is found advantageous to lubricate it slightly when dicing The third roller is covered with India rubber, or other elastic material, and is made to revolve with the rotating bed and with it forms the feeding device of the machine. I

The accompanying drawings are drawn to a scale of one and one-half inch to the foot.

Figure 1 is a longitudinal view. Fig. 2 is an end view; and Fig. 3 is a section of the rollers.

The side frames at and a are fastened together by the rods and nuts I; b and bar 0. The rotatin g bed d works in stationary bearings and the dicing-roller e and elastic roller f work in boxes sliding in the frames on and a, said sliding boxes being held down by screws. Under the sliding boxes which carry the dicing-roller e are placed springs for the purpose of keeping the dicingroller ofi the rotating bed when the leather has passed from the machine. One end of the shaft of the rotating bed d projects beyond the frame a, and upon it is fastened the gear 9, which is driven by the pinion h, attached to the driving pulley h. The gear 9 meshes into and drives a pinion, 43, secured to the end of the shaft of the elastic roller f, so that it revolves with the rotating bed and at the same rate of speed. The dicing-roller e is driven by a belt running over the pulley e in the same direction as the rotating bed (1, but at a higher speed, and as the leather is fed along by the elastic roller f pressing on the rotating bed d, it passes under the dicing-roller and the lines are burnished on the leather by reason of the surface of the dicing-roller e movin g quicker than the leather. Grooves are turned in the dicing or burnishing roller 0 the whole length of it, the necessary distance apart, and they range from about fourteen to the inch to twenty-nine to the inch. To the frames at and a is fastened the trough Z, in such position that cotton-waste saturated with a lubricant placed therein will touch the dicing-roller c. It is found in dicing some leather that lubricating the dicing or burnishing-roller slightly facilitates the operation. Instead of driving the dicing-roller by an independent belt it may be connected to and receive its motion from the gear-wheel g by intermediate gearing.

The operation of dicing leather may be performed in another way by the three rollers above described. By running thedicing-roller in the opposite direction to the rotating bed and pass ing the leather under it to the feeding device, the leather is drawn away from the dicing-roller after it is diced instead of being fed to the dicin g-roller before it is diced, as before described.

I claim 1. The grooved dicing-roller e, in combination with the rotating bed 01, substantially as set forth. 2. The combination of the rotating bed I, grooved dicing-roller c, and elastic feeding-roller f, substantially as set forth.

3. The trough l, in combination with the dieing-roller e, substantially as and for the purpose set forth.

ALFRED SHEDLOCK;

Witnesses: I

L. TRACY, WILLIAM SnEnLooK. 

